use the most advanced technology to protect our water. billions in the economy. at chevron, if we can't do it right, we won't do it at all. we've got to think long term. we've got to think long term. ♪ [ male announcer ] want to make a great car interior? stop looking at car interiors. get inspired by other stuff. yep. yep. ok. sure. why not? woah. touchscreens. put that in your dash. now, luxury stuff. make your seats like that. that thing has wifi, why doesn't your car? you can't do that. ignore that guy. give it wifi. yes! make it fit 5 people. no, 5 actual sized people. give them leg room, good. destroy boring car interiors forever. and that's how you do it. easy. ♪ ♪ ♪ ♪ >>> welcome back. thus far tonight we have explored a baffling malfunction in mid air at 30,000 feet and elusive balance of encouraging sometimes the biggest mystery, however, can be the person watching television next to you at 10:00 on a friday night. one woman decided to find out what really makes for a happy marriage because her own was failing. her story and what she found out